And even salted peanut butter still has about twice as much potassium as sodium.Numerous studies have shown that people who regularly include nuts or peanut butter in their diets are less likely to develop heart disease or type 2 diabetes than those who rarely eat nuts.
We Live in a Radioactive World The uses of radioactive materials, many of which generate low-level radioactive waste, have become an integral part of modern life. We do live in a radioactive world. Radioactivity is all around us. It is in rocks, in soil, in water.
1 Radioactivity tracers are commonly used in the medical field and also in the study of plants and animals. 2  Radiation is used and produced in nuclear reactors, which controls fission reactions to produce energy and new substances from the fission products.  Radiation is also used to sterilize medical instruments and food.